The Spring Framework

Package org.springframework.beans

This package contains interfaces and classes for manipulating Java beans.


Interface Summary
BeanMetadataElement Interface to be implemented by bean metadata elements that carry a configuration source object.
BeanWrapper The central interface of Spring's low-level JavaBeans infrastructure.
ConfigurablePropertyAccessor Interface that encapsulates configuration methods for a PropertyAccessor.
Mergeable Interface representing an object whose value set can be merged with that of a parent object.
PropertyAccessor Common interface for classes that can access named properties (such as bean properties of an object or fields in an object) Serves as base interface for BeanWrapper.
PropertyEditorRegistrar Interface for strategies that register custom property editors with a property editor registry.
PropertyEditorRegistry Encapsulates methods for registering JavaBeans PropertyEditors.
PropertyValues Holder containing 0 or more PropertyValue objects, typically comprising one update.
TypeConverter Interface that defines type conversion methods.

Class Summary
AbstractPropertyAccessor Abstract implementation of the PropertyAccessor interface.
BeanUtils Static convenience methods for JavaBeans: for instantiating beans, checking bean property types, copying bean properties, etc.
BeanWrapperImpl Default BeanWrapper implementation that should be sufficient for all typical use cases.
CachedIntrospectionResults Internal class that caches JavaBeans PropertyDescriptor information for a Java class.
DirectFieldAccessor PropertyAccessor implementation that directly accesses instance fields.
MutablePropertyValues Default implementation of the PropertyValues interface.
PropertyAccessorUtils Utility methods for classes that perform bean property access according to the PropertyAccessor interface.
PropertyEditorRegistrySupport Base implementation of the PropertyEditorRegistry interface.
PropertyValue Object to hold information and value for an individual bean property.
PropertyValuesEditor Editor for a PropertyValues object.
SimpleTypeConverter Simple implementation of the TypeConverter interface that does not operate on any specific target object.

Exception Summary
BeanInstantiationException Exception thrown when instantiation of a bean failed.
BeansException Abstract superclass for all exceptions thrown in the beans package and subpackages.
FatalBeanException Thrown on an unrecoverable problem encountered in the beans packages or sub-packages, e.g. bad class or field.
InvalidPropertyException Exception thrown when referring to an invalid bean property.
MethodInvocationException Thrown when a bean property getter or setter method throws an exception, analogous to an InvocationTargetException.
NotReadablePropertyException Exception thrown on an attempt to get the value of a property that isn't readable, because there's no getter method.
NotWritablePropertyException Exception thrown on an attempt to set the value of a property that isn't writable, because there's no setter method.
NullValueInNestedPathException Exception thrown when navigation of a valid nested property path encounters a NullPointerException.
PropertyAccessException Superclass for exceptions related to a property access, such as type mismatch or invocation target exception.
PropertyBatchUpdateException Combined exception, composed of individual PropertyAccessException instances.
TypeMismatchException Exception thrown on a type mismatch when trying to set a bean property.

Package org.springframework.beans Description

This package contains interfaces and classes for manipulating Java beans. It is used by most other Spring packages.

A BeanWrapper object may be used to set and get bean properties, singly or in bulk.

The classes in this package are discussed in Chapter 11 of Expert One-On-One J2EE Design and Development by Rod Johnson (Wrox, 2002).

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